OpenTechnical

OT-2026-000074252

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum fed, supply line pressure sensor, vented before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000074252) never changes.

Identity and time

Publication numberOT-2026-000074252 · never reused
Internal UUID01a0ae93-7178-74d9-965a-48913f221513 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074252
StatusPUBLIC

Content hashes

Canonical text8223f2cf886722afc70bb960772a5bf3e1ac0690c9cbdee10ff1fe8838544485
Markdown907856972417364507e93e2472f991009e32c20ca5c5c42255e938bfd7252144
PDF
Publication pagec1885d332cf991845930f5be927ec68b6654b595f84dac1e3466e8502c229ffb
Manifest54c3aa6adcc8f152173d0ed53cd5fca31e6686598294a8b8a8bb0469376164bb

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturesNgB+pj2JDbMAUz4WwvrIR7+EPILfq8gSCp0g/7eFox/CA9rYNOEoS3D3pqGoqvsQCcppWPVpTi86Tlj+05fDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:19:09.057397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074252
observed c1885d332cf991845930f5be927ec68b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.037587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074252/manifest.json
observed 54c3aa6adcc8f152173d0ed53cd5fca3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.018145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074252/publication.md
observed 907856972417364507e93e2472f99100...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:08.998505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074252/publication.txt
observed 8223f2cf886722afc70bb960772a5bf3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.